She stutters, how do I stop it?? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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#1 (permalink) Old 04-28-2006, 05:04 PM
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She stutters, how do I stop it??

89 325i - In 4th and 5th gear, from about 3000 rpm upwards she starts stuttering as if she isnt getting enough air or fuel - what might it be??
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#2 (permalink) Old 04-28-2006, 05:10 PM
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whe
Quote:
Originally Posted by Danbot
89 325i - In 4th and 5th gear, from about 3000 rpm upwards she starts stuttering as if she isnt getting enough air or fuel - what might it be??
whens the last time you changed the air filter?
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#3 (permalink) Old 04-28-2006, 09:26 PM
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Could be spark breaking down under load, check your ignition system.
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#4 (permalink) Old 04-29-2006, 10:31 PM
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Hey man,
I'm with the ASE guy (ditto on the ASE), I think your problem sounds like a classic case of secondary ignition neglect. When was the last time she had a full tune up? Take your cap off and look it over... if it has much in the way of corrosion replace it. Don't sand the contacts off, it will just make the problem come back quicker and it also increases the resistance in the ignition system. Also look for cracks or carbon tracking. This will look like little black trails on the plastic. If you find either just replace it wilth a quality new cap. Also check the rotor for wear and the same types of things. Always replace these two in pairs! As for the wires (including the coil wire), you should first do a visual inspection. Look at them and see if they've been rubbed through any where or if they are corroded inside the ends. If not than the next step is to Ohm them out. You will need a good DVOM for this. Just put the leads on opposing ends and set the DVOM to K Ohms. This means Ohmsx1000. The wires ends should list the Ohm reading they should have on them if they are BMW originals or Bosh. If not, the general rule is 7k ohms per foot or less. While testing the resistance of the wires, move them around and stuff to see if they have a short when moved. If one of them tests high, go ahead and replace the set as they are likely to be worse off when they are good and hot. If they're good then go ahead and put a little dielectric grease in the ends and put them back on. Oh, and by the way, only take off one at a time, that way you don't get them crossed! Very easy to do. I guess I kinda left off the most obvious part... the plugs! For the price of six cheap Bosh supers, you may as well just go ahead and buy a set before you start and replace them regardless of what they look like. Never hurts. But look them over real well when you take them out, as this can be a good indicator of what's going on inside your engine. They should all look fairly close to the same and should have a proper gap. The electrodes should have a square shoulder, if theyre rounded off, they sould be replaced. They should also be a little caramel colored or a tiny bit black. If they are white or ashy then you have other problems plaguing you. Anyhow try those things and I bet you come out on top! If not, you may have some fuel delivery problems! Let me know how it goes!
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#5 (permalink) Old 04-29-2006, 10:47 PM
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Quote:
Originally Posted by DIRTE30
Hey man,
I'm with the ASE guy (ditto on the ASE), I think your problem sounds like a classic case of secondary ignition neglect. When was the last time she had a full tune up? Take your cap off and look it over... if it has much in the way of corrosion replace it. Don't sand the contacts off, it will just make the problem come back quicker and it also increases the resistance in the ignition system. Also look for cracks or carbon tracking. This will look like little black trails on the plastic. If you find either just replace it wilth a quality new cap. Also check the rotor for wear and the same types of things. Always replace these two in pairs! As for the wires (including the coil wire), you should first do a visual inspection. Look at them and see if they've been rubbed through any where or if they are corroded inside the ends. If not than the next step is to Ohm them out. You will need a good DVOM for this. Just put the leads on opposing ends and set the DVOM to K Ohms. This means Ohmsx1000. The wires ends should list the Ohm reading they should have on them if they are BMW originals or Bosh. If not, the general rule is 7k ohms per foot or less. While testing the resistance of the wires, move them around and stuff to see if they have a short when moved. If one of them tests high, go ahead and replace the set as they are likely to be worse off when they are good and hot. If they're good then go ahead and put a little dielectric grease in the ends and put them back on. Oh, and by the way, only take off one at a time, that way you don't get them crossed! Very easy to do. I guess I kinda left off the most obvious part... the plugs! For the price of six cheap Bosh supers, you may as well just go ahead and buy a set before you start and replace them regardless of what they look like. Never hurts. But look them over real well when you take them out, as this can be a good indicator of what's going on inside your engine. They should all look fairly close to the same and should have a proper gap. The electrodes should have a square shoulder, if theyre rounded off, they sould be replaced. They should also be a little caramel colored or a tiny bit black. If they are white or ashy then you have other problems plaguing you. Anyhow try those things and I bet you come out on top! If not, you may have some fuel delivery problems! Let me know how it goes!
looks like this guy knows his stuff... to the werkz!
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#6 (permalink) Old 04-29-2006, 11:56 PM
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Everthing is correct except that BMW e30 plug wires have a solid wire core, so the ohms will be the same if they are 1 foot long or 3, unlike a carbon conductor wires that break down after a while and have higher ohms after time. That's why they last for well over 100,000 miles. Just do a continuity to see if they are good.

Last edited by Starmavin; 04-30-2006 at 12:04 AM.
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#7 (permalink) Old 05-01-2006, 08:16 AM
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#8 (permalink) Old 05-01-2006, 09:30 PM
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hey how far is clarkson from louisville? ever come up here?
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#9 (permalink) Old 05-02-2006, 09:40 AM
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Trekkin to the 'Ville!!!!

I'm actually from E-Town but have recently moved down the WK pkwy. about 25mi. because I run a Fastenal Industrial and Construction Supply store here in Leitchfield. Clarkson is a tiny little dot on the map without so much as a stoplight or sign for that matter! Anyhow I'm about 1h15m from the 'Ville. I do get up there pretty often to get parts and to just hang out on Baxter or Bearno's on 2'nd and Market. Love that BBC ! Where abouts are you in L'Ville?
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#10 (permalink) Old 05-02-2006, 01:16 PM
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Quote:
Originally Posted by DIRTE30
because I run a Fastenal Industrial and Construction Supply store here in Leitchfield.

I know quite a few people involved in Fastenal. Glad to see you on the board.



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#11 (permalink) Old 05-02-2006, 01:39 PM
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Quote:
Originally Posted by DIRTE30
I'm actually from E-Town but have recently moved down the WK pkwy. about 25mi. because I run a Fastenal Industrial and Construction Supply store here in Leitchfield. Clarkson is a tiny little dot on the map without so much as a stoplight or sign for that matter! Anyhow I'm about 1h15m from the 'Ville. I do get up there pretty often to get parts and to just hang out on Baxter or Bearno's on 2'nd and Market. Love that BBC ! Where abouts are you in L'Ville?
One of these days I will have a mini-meet with 'shaker. You should come.

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#12 (permalink) Old 05-02-2006, 10:40 PM
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No doubt!!! Good as There!
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#13 (permalink) Old 05-02-2006, 10:43 PM
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haha mini meet... but yeah my dads friend owns bearnos im pretty sure.. or at least a couple of the branchs... maybe a mini meet with free food? haha
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#14 (permalink) Old 05-02-2006, 10:48 PM
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Do you think he'd marry me?
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#15 (permalink) Old 05-02-2006, 10:52 PM
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Hey, let's just drive around and make a lot of noise, like the Uncle Ben's crowd... then we could be REALLY cool. Oh, wait.... No bazooka tube.... DAMN!
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